Living · 6 pages · 12 min

How potting soil differs from garden dirt

Potting mix drains in a pot, while garden dirt is finer field soil.

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From the opening

Potting soil is usually not soil from the ground, and it is a blend of materials such as peat, coir, bark, and perlite or vermiculite chosen so a pot drains and still holds some water. Garden dirt is mineral soil, with sand, silt, and clay, plus whatever organic matter the garden has built. The opening covers coarse pores made for a container, why clay packs above a drain hole, and field soil still belongs in the ground.

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Inside

  • Coarse pores made for a container
  • Why clay packs above a drain hole
  • Field soil still belongs in the ground
  • A squeeze test of texture
  • Where the idea stops applying
  • A distinction worth keeping

Sources

  • Soilless potting media and container drainage
  • The perched water table in a flower pot